Basics: Where do I find the cartextures in NL? How can I set a cartexture up in NL? and more...
Textures: How can I make my own cartexture?
TGA-File: an inside view on the TGA-File format. It´s much easier to make a texture, and to prevent errors,when you know how TGA-Files work.
PNG-File: more information about the PNG-File-Formate, that is supported by NoLimits since Version 1.5.